hcq/postgresql
1
0
Fork 0
mirror of https://git.postgresql.org/git/postgresql.git synced 2026-02-21 13:56:59 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix bugs in polymorphic-argument resolution for multiranges.

Browse Source 
We failed to deal with an UNKNOWN-type input for
anycompatiblemultirange; that should throw an error indicating
that we don't know how to resolve the multirange type.

We also failed to infer the type of an anycompatiblerange output
from an anycompatiblemultirange input or vice versa.

Per bug #17066 from Alexander Lakhin.  Back-patch to v14
where multiranges were added.

Discussion: https://postgr.es/m/17066-16a37f6223a8470b@postgresql.org
This commit is contained in:
Tom Lane
2021-07-27 15:01:49 -04:00
parent 674f6fe8e6
commit 336ea6e6ff
4 changed files with 306 additions and 154 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
src/test/regress/sql/polymorphism.sql
View File

@ -126,6 +126,54 @@ select x, pg_typeof(x), y, pg_typeof(y)
drop function polyf(a anyelement, b anyarray,
c anycompatible, d anycompatible);
create function polyf(anyrange) returns anymultirange
as 'select multirange($1);' language sql;
select polyf(int4range(1,10));
select polyf(null);
drop function polyf(anyrange);
create function polyf(anymultirange) returns anyelement
as 'select lower($1);' language sql;
select polyf(int4multirange(int4range(1,10), int4range(20,30)));
select polyf(null);
drop function polyf(anymultirange);
create function polyf(anycompatiblerange) returns anycompatiblemultirange
as 'select multirange($1);' language sql;
select polyf(int4range(1,10));
select polyf(null);
drop function polyf(anycompatiblerange);
create function polyf(anymultirange) returns anyrange
as 'select range_merge($1);' language sql;
select polyf(int4multirange(int4range(1,10), int4range(20,30)));
select polyf(null);
drop function polyf(anymultirange);
create function polyf(anycompatiblemultirange) returns anycompatiblerange
as 'select range_merge($1);' language sql;
select polyf(int4multirange(int4range(1,10), int4range(20,30)));
select polyf(null);
drop function polyf(anycompatiblemultirange);
create function polyf(anycompatiblemultirange) returns anycompatible
as 'select lower($1);' language sql;
select polyf(int4multirange(int4range(1,10), int4range(20,30)));
select polyf(null);
drop function polyf(anycompatiblemultirange);
--
-- Polymorphic aggregate tests